Quarterly Percent
1998-04-01 64.4
1998-10-01 65.8
1999-04-01 64.4
1999-10-01 63.1
2000-04-01 61.9
2000-10-01 60.4
2001-04-01 61.4
2001-10-01 62.2
2002-01-01 62.2
2002-04-01 63.0
2002-07-01 66.8
2002-10-01 64.2
2003-01-01 65.2
2003-04-01 64.2
2003-07-01 66.1
2003-10-01 64.9
2004-01-01 64.4
2004-04-01 65.5
2004-07-01 66.3
2004-10-01 65.0
2005-01-01 65.8
2005-04-01 65.6
2005-07-01 67.5
2005-10-01 66.7
2006-01-01 68.4
2006-04-01 68.9
2006-07-01 72.8
2006-10-01 71.6
2007-01-01 70.0
2007-04-01 71.6
2007-07-01 74.7
2007-10-01 74.3
2008-01-01 72.0
2008-04-01 72.5
2008-07-01 72.4
2008-10-01 68.9
2009-01-01 63.5
2009-04-01 60.8
2009-07-01 59.8
2009-10-01 57.0
2010-01-01 54.7
2010-04-01 57.0
2010-07-01 59.8
2010-10-01 60.2
2011-01-01 59.8
2011-04-01 60.6
2011-07-01 62.4
2011-10-01 63.1
2012-01-01 61.9
2012-04-01 63.7
2012-07-01 66.5
2012-10-01 65.5
2013-01-01 65.3
2013-04-01 65.9
2013-07-01 67.9
2013-10-01 68.0
2014-01-01 66.8
2014-04-01 67.8
2014-07-01 68.9
2014-10-01 69.9
2015-01-01 69.1
2015-04-01 69.8
2015-07-01 70.1
2015-10-01 70.6
2016-01-01 69.7
2016-04-01 70.4
2016-07-01 70.3
2016-10-01 69.4
2017-01-01 70.4
2017-04-01 71.4
2017-07-01 72.9
2017-10-01 73.0
2018-01-01 72.5
2018-04-01 73.1